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Finding the Fourth Proportional to 43,888.50, 65,835.18 and 12,726.18

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Solution

The fourth proportional to 43,888.50, 65,835.18 and 12,726.18 is: 19,089.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,888.50 : 65,835.18 = 12,726.18 : x
  2. Step 2: Convert to fraction form
    43,888.50/65,835.18 = 12,726.18/x
  3. Step 3: Cross multiply
    43,888.50x = 65,835.18 × 12,726.18
  4. Step 4: Simplify right side
    43,888.50x = 837,830,351.01
  5. Step 5: Solve for x
    x = 837,830,351.01/43,888.50
  6. Step 6: Final answer
    x = 19,089.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.